Moses n



(No Model.) 2 Sheets -Sheet l.

' A. -B.-STEVENS.

ROCKING CHAIR ATTACHMENT.

No. 421,529 Patented Feb. 18, 1890.

(No Model.) '2 Sheets-Sheet 2.

A. B. STEVENS.- BOOKING CHAIR ATTAGHMENT.

No. 421,529. PatentedTehlB, 1890.

N. PEYzRs. Pnuwumb n non wan-1mm n.c.

UNITED STATES ATENT' FFICE.

ASHER B. STEVENS, OF BROOKLYN, NFJV YORK; MOSES N. BAKER (ADMIN- ISTRATOR OF ASHER B. STEVENS, DECEASED) ASSIGNOR TO THE ROCKER SPRING COMPANY, OF CHICAGO, ILLINOIS.

ROCKING-CHAIR ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 421,529, dated February 18, 1890. Application filed September 211 1887. Serial No. 250,277. (No model.)

To all whom it may concern:

Be it known that I, ASHER B. STEVENS, a citizen of the United States, residin at Brooklyn, in-the county of Kings and State of New York, have invented a certain new and useful Improvement in Rocking-Chair Attachments, of which the following is afull, clear, and exact description.

The object of my invention is to make a compressible spring attachment for platform rocking-chairs; and the invention consists in the features and combinations hereinafter described and claimed.

In the accompanying drawings, Figure l is x 5 alongitudinal section showing the inside of one of the rockers and base-rails of a platform rocking-chair equipped with my improved attachment, the spring being below the line of contact between the rocker and base-rail;

Fig. 2, substantially the same, except that it shows the spring above such line of contact and the rod inside thereof extending upwardly; Fig. 3, a cross section taken in the line as w of Fig. 1; Fig. 4, substantially the same as Fig. 1,

2 5 except that it shows a metallic rim at the bottom of the spring; Figs. 5 to 8, inclusive, views of parts detached; and'Fig. 9, the same as Fig. 1, except that it shows the spring extending both above and below the line of contact be 0 tween the rocker and base-rail and two rods extending in opposite directions inside its coils, the means of attachment being modified accordingly.

A is the rocker; B,thebase-rail; C, the connecting-spring; D, the wire or rod inside the spring; d, the loop therein, and d the turnedup ends thereof; E, the attaching-bracket secured to one end of the spring and one part of the chair, and F the attaching-bracket 0 having an arm or projecting portion secured to the other part of the chair.

I11 constructing my improved attachment I use an open coiled spiral spring, which in operation will be readily compressed instead of extended by the rocking of the chair. This compressing of the spring will of course prevent its becoming unduly stretched or otherwise weakened when in use.

To one end of the spring I secure a suitable rod having its central or looped -portion. em-

brace a projecting arm or part of the bracket attached to such rocker or base-rail and its extreme ends bent or turned up and hooked under or over the last coil of the spring at its said'opposite end. In this way the spring is firmly secured, to both the rocker and baserail, to the one directly by a bracket at one of its ends and to the other indirectly by a rod engaging the terminal coil at its other end, and the two attachments thus applied-, one at the inside of each rocker and baserailoperate to firmly and securely connect the rocking and base parts of the chair together.

I prefer to flatten the wire forming the end coil of the spring with which the hooks or turned-up ends of the rod engage, or to use a metallic rim at this end of the spring to prevent any slipping or loose motion; but of course, as in the case of the other end of the spring, the attachment at this point may be I made in any convenient way. I also prefer to use a bent or looped rod, as above described, to connect the end of the spring not provided with a bracket to its appropriate rocker or base-rail; but any other form of device capable of so indirectly connecting such end of the spring may of course be used. The advantages of my invention are that it makes asimple, cheap, efficient attachment, and that the spring, being compressed instead of extended by the rocking of the chair, does notlo se its elasticity or strength, or in any way become weakened by unduestretching or otherwise.

The essence of my invention, consisting in the use of a compressible spiral spring as the connecting medium between the rocker and base-rail of a base rocking-chair, one end of such spring being secured to the chair directly by a bracket and the other indirectlyby a Wire or red extending lengthwise of the spring, I of course do not wish to be under stood as limiting myself to special forms or details of construction. On the contrary, I intend to cover all proper modifications of or equivalents for any of the parts described.

\Vhen I use the expression chair attachinent, I mean what is commonly understood in the art as one of the appliances generally used in pairs, forming the connection between the seat and base parts for holding the rockers and base-rails in alignment and proper relative position, made separate from the chair and in form to be applied thereto by connecting devices. By connectors Imean brackets, studs, plates, screws, rods, or other parts or devices, also made separate from the chair and used to secure the ends of the spring to the rocker and base-rail.

I claim- 1.- A platform rocking chair attachment comprising two connectors adapted to be secured at the side of the rocker and base-rail to aitord fixed points of connection thereon, respectively, and a compressible spiral spring adapted to have one end connected to one of such fixed points of connection and the other connected to the other fixed point of connection and at a distance therefrom unchangeable by the rocking movement of the chair, substantially as described.

2. A platform rocking-chair attachment comprising a compressible spiral spring, a bracket secured to one end of the spring adapted to be attached at the side of one part of the chair, and a rod secured to the other end of the spring and extending lengthwise thereof adapted to be attached to a fixed point of connection on the side of the other part of the chair and at a distance from the end of the spring unchangcable by the rocking movement of the chair, substantially as described.

3. In combination with the rocker and baserail of a plat-form rocking-chair, a compressi ble spiral spring, a bracket I secured to one of said parts of the chair having an outwardlyprojecting portion, a bracket E, secured to the other of said parts of the chair and to one end of the spring, and a rod secured to the other end of the spring and having a bent portion secured to the projection of the bracket F, holding the end of the spring at a distance therefrom unchangeable by the rocking movement of the chair, substantially as described.

In testimony whereof I have hereunto set my hand this 20th day of September, A. D. 1887.

ASHER ll. STEVENS.

Witnesses:

EDWIN A. FINCKEL, HARRY Y. DAVIS. 

